From 199bbc7a4c0d980d22bb7708be27ee383ef153d1 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 11 Aug 2021 08:36:53 +0200 Subject: [PATCH] gas: fold IEEE encoding of -Inf with that of +Inf The respective results differ only by the sign bits - there's no need to have basically identical (partially even arch-specific) logic twice. Simply set the sign bit at the end of encoding the various formats. --- gas/config/atof-ieee.c | 45 +++--------------------------------------- 1 file changed, 3 insertions(+), 42 deletions(-) diff --git a/gas/config/atof-ieee.c b/gas/config/atof-ieee.c index 9cf6aced4ab..17abf4ab22a 100644 --- a/gas/config/atof-ieee.c +++ b/gas/config/atof-ieee.c @@ -387,6 +387,7 @@ gen_to_words (LITTLENUM_TYPE *words, int precision, long exponent_bits) return return_value; case 'P': + case 'N': if (TC_LARGEST_EXPONENT_IS_NORMAL (precision)) as_warn (_("Infinities are not supported by this target")); @@ -428,50 +429,10 @@ gen_to_words (LITTLENUM_TYPE *words, int precision, long exponent_bits) words[2] = 0; words[3] = 0; } - return return_value; - case 'N': - if (TC_LARGEST_EXPONENT_IS_NORMAL (precision)) - as_warn (_("Infinities are not supported by this target")); + if (generic_floating_point_number.sign == 'N') + words[0] |= 0x8000; - /* Negative INF. */ - if (precision == H_PRECISION /* also B_PRECISION */) - { - words[0] = exponent_bits == 5 ? 0xfc00 : 0xff80; - } - else if (precision == F_PRECISION) - { - words[0] = 0xff80; - words[1] = 0x0; - } - else if (precision == X_PRECISION) - { -#ifdef TC_M68K - words[0] = 0xffff; - words[1] = 0; - words[2] = 0; - words[3] = 0; - words[4] = 0; - words[5] = 0; -#else /* ! TC_M68K */ -#ifdef TC_I386 - words[0] = 0xffff; - words[1] = 0x8000; - words[2] = 0; - words[3] = 0; - words[4] = 0; -#else /* ! TC_I386 */ - abort (); -#endif /* ! TC_I386 */ -#endif /* ! TC_M68K */ - } - else - { - words[0] = 0xfff0; - words[1] = 0x0; - words[2] = 0x0; - words[3] = 0x0; - } return return_value; } -- 2.30.2